CN202394802U

CN202394802U - Alternating current high voltage vacuum circuit breaker used for 12kV power system

Info

Publication number: CN202394802U
Application number: CN2011205696092U
Authority: CN
Inventors: 董立锋
Original assignee: Xian Electric Manufacturing Corp
Current assignee: China XD Electric Co Ltd; Xian Electric Manufacturing Corp
Priority date: 2011-12-23
Filing date: 2011-12-23
Publication date: 2012-08-22
Anticipated expiration: 2021-12-23

Abstract

The utility model discloses an alternating current high voltage vacuum circuit breaker used for a 12kV power system. The alternating current high voltage vacuum circuit breaker comprises a panel, a spring operating mechanism, an electric propulsion chassis truck, a contact arm, a plum contact, a solid encapsulated pole insulating cylinder and a frame body, wherein the panel and the spring operating mechanism are arranged in the frame body, and the spring operating mechanism is connected with a transmission main shaft of the circuit breaker by virtue of an output joint; the plum contact is connected with the solid encapsulated pole insulating cylinder by virtue of the contact arm; the solid encapsulated pole insulating cylinder is arranged on the frame body, the solid encapsulated pole insulating cylinder is connected with one end of a crank arm of the circuit breaker by virtue of an insulating pull rod, and the other end of the crank arm of the circuit breaker is connected with the transmission main shaft of the circuit breaker; and the frame body is arranged on the electric propulsion chassis truck. The alternating current high voltage vacuum circuit breaker disclosed by the utility model has the characteristics of reasonable layout, compact structure, nice appearance, convenience in overhaul and maintenance and safe and reliable performance.

Description

A kind of AC high voltage vacuum breaker that is used for the 12kV electric power system

[technical field]

The utility model relates to high voltage switchgear and makes the field, is specially adapted to a kind of AC high voltage vacuum breaker of 12kV electric power system.

[background technology]

Along with the continuous development of China's electric utility, and country is energy-saving and cost-reducing, the intelligentized industrial policy of electrical network is implemented, and the new specification requirement that present vacuum circuit-breaker is proposed reaches bigger demand.In such cases, my company concentrates one's energy to develop the Mechanical Reliability height, has the novel evacuated circuit breaker of intelligent functions, promotes market competitive power.

[utility model content]

The purpose of the utility model provides a kind of AC high voltage vacuum breaker of the 12kV of being used for electric power system, and its life-span is long, can realize intelligent Long-distance Control.

To achieve these goals, the utility model adopts following technical scheme:

A kind of AC high voltage vacuum breaker that is used for the 12kV electric power system comprises panel, spring operating mechanism, electronic propelling chassis, contact arm, Mume flower contact, pole insulating cylinder and support body; Panel and spring operating mechanism are installed in the support body, and spring operating mechanism is connected with the circuit breaker transmission main shaft through out splice going splice; Mume flower contact connects the pole insulating cylinder through contact arm; The pole insulating cylinder is installed on the support body, and the pole insulating cylinder connects circuit breaker connecting lever one end through insulated tension pole, and the circuit breaker connecting lever other end connects the circuit breaker transmission main shaft; Support body is installed on the electronic propelling chassis.

Be provided with leading screw and nut mechanism between the cabinet of electronic propelling chassis and installation AC high voltage vacuum breaker.

Be equipped with on the electronic propelling chassis and drive the DC motor that screw mandrel rotates.

Compared with prior art, the utlity model has following advantage: 1) the breaker mechanical life-span reaches 30000 times, and prior art is 10000 times; 2) pole insulating cylinder structure is adopted in circuit breaker primary conductive loop, and the environment tolerance strengthens greatly, and electric life is high, and specified short circuit interruption 50 times (existing is 30 times) makes pole non-maintaining fully in useful life; 3) support body adopts the 4mm cold drawing through CNC numerical control device and laser cutting device processing, and dimensional accuracy is high, and handcart interchangeability is good; 4) have perfect " five is anti-" interlocking measure, safe and reliable; 5) adopt electric chassis truck, can realize the intelligent Long-distance Control of circuit breaker.The utlity model has rationally distributed, compact conformation, good looking appearance, repair and maintenance is convenient, the safe and reliable characteristics of performance.

[description of drawings]

Fig. 1 a is the utility model AC high voltage vacuum breaker modularization operating mechanism sketch map;

Fig. 1 b is the sketch map of another angle of Fig. 1 a;

Fig. 2 a is the structural representation of the utility model AC high voltage vacuum breaker mechanism part;

Fig. 2 b is the sketch map of another angle of Fig. 2 a;

Fig. 3 a is that the utility model AC high voltage vacuum breaker seals post insulating cylinder sketch map admittedly; Fig. 3 b is the sketch map of another angle of Fig. 3 a;

Fig. 4 a is the utility model AC high voltage vacuum breaker general assembly sketch map;

Fig. 4 b is the sketch map of another angle of Fig. 4 a;

Fig. 4 c is the sketch map of another angle of Fig. 4 a.

[embodiment]

Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.

See also shown in Fig. 1 a to Fig. 4 c, the AC high voltage vacuum breaker of a kind of 12kV of being used for electric power system of the utility model comprises panel 1, spring operating mechanism 2, electronic propelling chassis 3, contact arm 4, Mume flower contact 5, pole insulating cylinder 6, support body 7.

Spring operating mechanism 2 is installed in the support body 7; Spring operating mechanism 2 is connected with circuit breaker transmission main shaft 10 through out splice going splice; Pole insulating cylinder 13 is installed on the support body 7; Be connected with circuit breaker connecting lever 14 through insulated tension pole 12, circuit breaker connecting lever 14 other ends connect circuit breaker transmission main shaft 10, thereby realize the transmission of spring operating mechanism 2 to pole insulating cylinder 13.Main conductive circuit is made up of through contact arm 4, pole insulating cylinder 13 serial connections Mume flower contact 5.Circuit breaker support body 7 is installed on the chassis 3, and the positive and negative rotation of the leading screw through chassis 3 is operated into and out of cabinet when realizing that circuit breaker is joined cabinet.

Consult shown in Fig. 1 a to Fig. 2 b, the utility model AC high voltage vacuum breaker modularization operating mechanism 2 characteristics are that rational in infrastructure, amount of parts is few, reliable in action property is high, and assembling, maintenance are very convenient.The action of circuit breaker on/off switch all relies on operating mechanism 2 to accomplish; Whole on/off switch process is electronic and manual energy storage drive disk assembly a motion, drives spring energy-storage parts b springs and accomplishes energy storage, when circuit breaker during in the separating brake position; Making electromagnet c moves under electronic or manual operation and makes the energy abrupt release of spring energy-storage parts b; Drive transmission main shaft 10 motions through out splice going splice f, the combined floodgate holding member d of operating mechanism remains on closing position with circuit breaker, accomplishes closing operation.Behind the combined floodgate, when tripping electromagnet e moves under electronic or manual operation, close a floodgate to keep being disengaged, under the effect of tripping spring 11, circuit breaker is got back to gate-dividing state.

Consult shown in Fig. 3 a to Fig. 3 b; Circuit breaker adopts pole type insulating cylinder 13, and pole technology is to utilize epoxy resin, and vacuum interrupter and other connection conductive component are frozen into an integral body; Vacuum circuit-breaker insulation level and stain resistance have been improved greatly; Strengthen the outer creep distance of major loop simultaneously, improved arc control device withstand voltage level, made complete machine have non-maintaining ability.This pole insulating cylinder 13 is cores of the whole electric property of circuit breaker, is connected with breaker mechanism 2 through the insulated tension pole shown in Fig. 3 12, and under the drive of operating mechanism 2, required combined floodgate and sub-switching operation when accomplishing the electric power system distribution.

Consult shown in Fig. 4 a to Fig. 4 c, the chassis 3 that circuit breaker adopts is equipped with DC motor and deceleration, arrangement of clutch; Motor power (output) 200W; Operating power direct current 220V can manually reach electronic drive and advance the positive and negative rotation of car leading screw, thereby realizes the turnover cabinet operation of circuit breaker.Because the electric operating function that chassis 3 has cooperates remote computer just can realize the intelligentized unattended function of intelligent grid requirement, and then realizes the unattended operation of switchgear house.

Claims

1. an AC high voltage vacuum breaker that is used for the 12kV electric power system is characterized in that, comprises panel (1), spring operating mechanism (2), electronic propelling chassis (3), contact arm (4), Mume flower contact (5), pole insulating cylinder (6) and support body (7); Panel (1) and spring operating mechanism (2) are installed in the support body (7), and spring operating mechanism (2) is connected with circuit breaker transmission main shaft (10) through out splice going splice (f); Mume flower contact (5) connects pole insulating cylinder (6) through contact arm (4); Pole insulating cylinder (6) is installed on the support body (7), and pole insulating cylinder (6) connects circuit breaker connecting lever (14) one ends through insulated tension pole (12), and circuit breaker connecting lever (14) other end connects circuit breaker transmission main shaft (10); Support body (7) is installed on the electronic propelling chassis (3).

2. a kind of AC high voltage vacuum breaker that is used for the 12kV electric power system according to claim 1 is characterized in that, is provided with leading screw and nut mechanism between the cabinet of electronic propelling chassis (3) and installation AC high voltage vacuum breaker.

3. a kind of AC high voltage vacuum breaker that is used for the 12kV electric power system according to claim 2 is characterized in that, is equipped with on the electronic propelling chassis (3) to drive the DC motor that screw mandrel rotates.